question about inetd.sec

[lin.chen]

usally I use inetd.sec to restrict some service about network,such as ftp and telnet,etc.
Now I have a question,does the inetd.sec can restrict all services list in /etc/services,or the inetd.sec only can restrict the service controlled by inetd.conf?
for example, if i want to restrict certain IP address to use database by inetd.sec,can I?

[rariasn]

Hi lin.chen

# man inetd.sec

...
Lines in inetd.sec beginning with # are comments. Comments are not
allowed at the end of a line of data.

The lines in the file contain a service name, permission field, and
the Internet addresses or official names of the hosts and networks
allowed to use that service in the local host. The fields in each
line are as follows:



service name is the name (not alias) of a valid service in file
/etc/services. The service name for RPC-based services (NFS) is the
name (not alias) of a valid service in file /etc/rpc. A service name
in /etc/rpc corresponds to a unique RPC program number.

rgs,

[Peter Godron]

Hi,
the /etc/services file specifies ports and protocols allowed to connect. Once you have allowed a connection on a port and set up the service to handle the requests, you can use inetd.sec to control further security.

Seem "man inetd.sec"
"The fields in each line are as follows:



service name is the name (not alias) of a valid service in file /etc/services."

[Bob Ingersoll]

umm, this isn't all that difficult to figure out. The first sentence of the inetd.sec manpage states:

"inetd.sec - optional security file for inetd"

inetd.sec restricts access ONLY to inetd services in /etc/services and /etc/rpc; not to other services.